third_party/CMakeLists.txt

# Copyright 2022 The Dawn & Tint Authors
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Don't build testing in third_party dependencies
set(BUILD_TESTING OFF)

# fetch_dawn_dependencies.py is an alternative to using depot_tools
# It is particularly interesting when building dawn as a subdirectory in
# a parent project that does not want to use depot_tools.
if (${DAWN_FETCH_DEPENDENCIES})
    find_package(PythonInterp 3 REQUIRED)

    set(EXTRA_FETCH_ARGS)

    message(STATUS "Running fetch_dawn_dependencies:")
    execute_process(
        COMMAND
            ${PYTHON_EXECUTABLE}
            "${PROJECT_SOURCE_DIR}/tools/fetch_dawn_dependencies.py"
            --directory ${PROJECT_SOURCE_DIR}
            ${EXTRA_FETCH_ARGS}
    )
endif ()

if (NOT TARGET dawn)
    set(DAWN_BUILD_SAMPLES OFF CACHE BOOL "" FORCE)
    set(DAWN_USE_GLFW ON CACHE BOOL "" FORCE)

    message(STATUS "Dawn Samples: using Dawn at ${SAMPLES_DAWN_DIR}")
    add_subdirectory(${SAMPLES_DAWN_DIR} "${CMAKE_CURRENT_BINARY_DIR}/dawn")
endif()

if (NOT TARGET glfw)
    set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
    set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
    set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
    set(GLFW_BUILD_X11 ${DAWN_USE_X11} CACHE BOOL "" FORCE)
    set(GLFW_BUILD_WAYLAND ${DAWN_USE_WAYLAND} CACHE BOOL "" FORCE)

    message(STATUS "Dawn Samples: using GLFW at ${SAMPLES_GLFW_DIR}")
    add_subdirectory(${SAMPLES_GLFW_DIR} "${CMAKE_CURRENT_BINARY_DIR}/glfw")
endif()